package com.atguigu.service;

import com.atguigu.pojo.User;

import java.util.List;

/**
 * @author DongYu Zhou
 * @date 2022/5/30 21:26
 */
public interface UserService {
    List<User> findUsers();

    User findUserById(Long id);

    void saveUser(User user);

    void updateUser(User user);

    void deleteUserById(Long id);

}
